Beam-foil lifetime measurements for Ga II and Ga III using a field-emission ion source

1985 ◽  
Vol 63 (10) ◽  
pp. 1330-1333 ◽  
Author(s):  
W. Ansbacher ◽  
E. H. Pinnington ◽  
J. L. Bahr ◽  
J. A. Kernahan
Keyword(s):  
Field Emission ◽  
Ion Source ◽  
Resonance Transition ◽  
Lifetime Measurements ◽  
Graaff Accelerator ◽  
Van De Graaff ◽  
Beam Foil ◽  
Foil Technique

A brief description is given of the modifications to a 2-MV Van de Graaff accelerator that are required to incorporate a field-emission ion source. The source is used to obtain a 1-μA beam of Ga+ ions. Lifetime measurements using the beam-foil technique are reported for the 4s5s1S, 4s4p1P, 4s4d1D, 4s5d1D, 4p21D, 4s5s3S, 4p23p, and 4s4d3D terms of Ga II and for the 5s2S, 4p2P, 4d2D, and 5f2F terms of Ga III. A detailed discussion is given of the cascading problem in the case of the Ga II resonance transition at 1414 Å.

Restoration of the radio frequency ion source of the 5.5 MV CN-Van de Graaff accelerator at IFUNAM

2021 ◽  
Vol 16 (08) ◽  
pp. T08013
Author(s):  
C.G. Puigvert-Angulo ◽  
R. Espejel ◽  
C. Valencia ◽  
A.O. Valdez-Guerrero ◽  
J. Mas-Ruiz ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Ion Source ◽  
Graaff Accelerator ◽  
Van De Graaff

Mean lifetime measurements of F II and F III levels using beam-foil technique

Pramana ◽  
1998 ◽  
Vol 50 (3) ◽  
pp. 231-237
Author(s):  
B N Raja Sekhar ◽  
S Padmanabhan ◽  
Aparna Shastri ◽  
P Meenakshi Raja Rao ◽  
M B Kurup ◽  
...  
Keyword(s):  
Lifetime Measurements ◽  
Mean Lifetime ◽  
Beam Foil ◽  
Foil Technique

Beam-foil lifetime measurements for some 2p3nl terms of singly-ionized fluorine

1979 ◽  
Vol 57 (7) ◽  
pp. 1046-1050 ◽  
Author(s):  
Eric H. Pinnington ◽  
Robert N. Gosselin ◽  
David J. G. Irwin ◽  
James A. O'Neill
Keyword(s):  
Wavelength Region ◽  
Lifetime Measurements ◽  
Experimental Values ◽  
Beam Foil ◽  
Foil Technique ◽  
Good Agreement

We have used the beam-foil technique in the wavelength region between 3500 and 4500 Å to measure the lifetimes of 10 terms in F II having the configuration 2p3nl, and also to demonstrate the usefulness of the ANDC method for overcoming the effects of cascade repopulation in these measurements. Our results are in good agreement with theory and with other experimental values.

scholarly journals Ion Source Optimisation for Proton Beam Quality of the Van De Graaff Accelerator at iThemba LABS for Ion Beam Analysis

2013 ◽  
Vol 03 (03) ◽  
pp. 83-86
Author(s):  
M. E. M. Eisa ◽  
J. L. Conradie ◽  
P. J. Celliers ◽  
J. L. G. Delsink ◽  
D. T. Fourie ◽  
...  
Keyword(s):  
Proton Beam ◽  
Beam Quality ◽  
Ion Beam ◽  
Ion Source ◽  
Ion Beam Analysis ◽  
Graaff Accelerator ◽  
Beam Analysis ◽  
Van De Graaff

A PIG Ion Source of (He3)++for the Van de Graaff Accelerator

1968 ◽  
Vol 7 (8) ◽  
pp. 936-938 ◽  
Author(s):  
Yoshikazu Kumamoto ◽  
Akira Isoya
Keyword(s):  
Ion Source ◽  
Graaff Accelerator ◽  
Van De Graaff ◽  
Pig Ion Source

A modification to the ion source pulsing system of a PN-400 Van de Graaff accelerator

1981 ◽  
Vol 179 (1) ◽  
pp. 11-12 ◽  
Author(s):  
P.R.P. Coelho ◽  
L. Holland ◽  
A. Sgambatti
Keyword(s):  
Ion Source ◽  
Graaff Accelerator ◽  
Van De Graaff
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